EP1319451A1 - Supporting system for a wall element, in particular for a lid or container wall element - Google Patents

Abstract

The connector has a tube piece (2) projecting from the wall part (1), which in the assembly state, is sealed to the wall part via the intermediate layer of a seal (3). There is a tubular attachment (4) for gripping the tube piece through an aperture in the wall. In the assembly state, this forms an axial connection without play to the wall part.

Description

The present invention relates to a nozzle for a wall part, in particular for a Wall part of a lid or container, with one protruding from the wall part Pipe section. In this case, the wall part of the pressure vessel can preferably be the wall act from which the pipe section protrudes outwards.

In known nozzles of this type, in particular form nozzles which are integral be attached to the wall part, the prior art. For example, in the DE 35 20 161 C2 describes a "mechanized method for welding thick-walled joints Socket with cylindrical container parts ". Furthermore, also known nozzles that have a pipe thread and in a threaded hole Container wall can be screwed in, as well as valves for tubeless vehicle tires where a rubber body is inserted into the tire wall.

With all of these types of connection, either the nozzle must be in front of one Surface treatment, for example painting, on the lid or container wall attached, or the wall part must be from both sides for assembly be accessible, or there may not be sufficient sealing, in particular compared to a fluid under pressure in the container become.

The present invention has for its object a nozzle of the beginning to create the type mentioned in the wall part in the presence of the finishing condition the container is attachable and at the same time the required sealing effect guaranteed.

According to the invention, this is achieved by a nozzle of the type mentioned at the beginning, in which the pipe section in the assembled state with the interposition of a seal on the Wall part is sealingly attached to the front, for penetrating an opening in the Wall part on the pipe section, a pipe extension is present, which in the assembled state the wall part forms an at least form-fitting, axially backlash-free connection.

According to the invention, joining of the connecting piece can advantageously only take place after the Manufacturing and surface treatment of the wall part take place. For this purpose the lid or container wall only has a simple through hole, whose edge area has a surface on which the seal, for example an O or Profile ring that can seal. Such a hole can, for example, in manufacturing technology simple way of making a lid or container be punched in before the painting process. But also after painting a hole could be drilled using a drill. So that the seal on the Can seal part of the wall, the wall should be flat or should be minimal Do not fall below the radius. However, if the latter is not the case, the plan can be reduced to be attached to the bore, which in one operation involves drilling the Through hole can be done using a form drill.

Further advantageous design features of the invention are in the subclaims as well as the following description.

Fig. 1

einen Längsschnitt durch eine erste Ausführung eines fertig montierten erfindungsgemäßen Stutzens einschließlich zweier Anschlußstücke in einem Zwischenzustand der Montage,

Fig. 2

eine Fig. 1 entsprechende Darstellung der ersten Ausführung eines erfindungsgemäßen Stutzens im Endzustand der Montage,

Fig. 3

eine Fig. 2 entsprechende Schnittdarstellung einer zweiten Ausführung eines erfindungsgemäßen Stutzens im Endzustand der Montage,

Fig. 4

eine Fig. 1 entsprechende Ansicht einer dritten Ausführung eines erfindungsgemäßen Stutzens in einem Zwischenzustand der Montage,

Fig. 5

eine Fig. 2 entsprechende Ansicht der dritten Ausführung eines erfindungsgemäßen Stutzens im Endzustand der Montage,

Fig. 6

in perspektivischer Explosionsdarstellung, einen Längsschnitt durch eine vierte Ausführung eines fertig montierten erfindungsgemäßen Stutzens einschließlich eines Anschlußstückes,

Fig. 7

eine Fig. 6 entsprechende, jedoch vergrößerte Darstellung der vierten Ausführung eines erfindungsgemäßen Stutzens in einem Zwischenzustand der Montage,

Fig. 8

eine Fig. 7 entsprechende Darstellung der vierten Ausführung eines erfindungsgemäßen Stutzens im Endzustand der Montage,

Fig. 9

in perspektivischer Explosionsdarstellung, eine Ansicht einer fünften Ausführung eines fertig montierten erfindungsgemäßen Stutzens einschließlich eines Anschlußstückes,

Fig. 10

eine Fig. 8 entsprechende Schnittdarstellung der fünften Ausführung eines erfindungsgemäßen Stutzens im Endzustand der Montage,

Fig. 11

in perspektivischer Explosionsdarstellung, eine Ansicht einer sechsten Ausführung eines erfindungsgemäßen Stutzens einschließlich eines Anschlußstückes in einem Zwischenzustand der Montage,

Fig. 12

eine Fig. 7 entsprechende Schnittdarstellung der sechsten Ausführung eines erfindungsgemäßen Stutzens im Zwischenzustand der Montage,

Fig. 13

eine Fig. 8 und 10 entsprechende Schnittdarstellung der sechsten Ausführung eines erfindungsgemäßen Stutzens im Endzustand der Montage,

Fig. 14

eine Schnittdarstellung einer siebenten Ausführung eines erfindungsgemäßen Stutzens,

Fig. 15

eine Schnittdarstellung der siebenten Ausführung eines erfindungsgemäßen Stutzens im Endzustand der Montage, mitsamt des Druckbehälters, in den der Stutzen montiert ist,

Fig. 16

in vergrößerter Darstellung gegenüber Fig. 15, die siebente Ausführung eines erfindungsgemäßen Stutzens im Endzustand der Montage.

The invention will now be explained in more detail with reference to several preferred exemplary embodiments shown in the drawing. Show:

Fig. 1

2 shows a longitudinal section through a first embodiment of a fully assembled connecting piece according to the invention including two connecting pieces in an intermediate state of assembly,

Fig. 2

1 corresponding representation of the first embodiment of a nozzle according to the invention in the final state of assembly,

Fig. 3

2 corresponding sectional view of a second embodiment of a nozzle according to the invention in the final state of assembly,

Fig. 4

1 corresponding view of a third embodiment of a nozzle according to the invention in an intermediate state of assembly,

Fig. 5

2 corresponding view of the third embodiment of a nozzle according to the invention in the final state of assembly,

Fig. 6

in an exploded perspective view, a longitudinal section through a fourth embodiment of a fully assembled nozzle according to the invention including a connecting piece,

Fig. 7

6 corresponding, but enlarged representation of the fourth embodiment of a nozzle according to the invention in an intermediate state of assembly,

Fig. 8

7 corresponding representation of the fourth embodiment of a nozzle according to the invention in the final state of assembly,

Fig. 9

in an exploded perspective view, a view of a fifth embodiment of a fully assembled connecting piece according to the invention including a connector,

Fig. 10

8 shows a sectional illustration corresponding to the fifth embodiment of a nozzle according to the invention in the final state of assembly,

Fig. 11

in an exploded perspective view, a view of a sixth embodiment of a nozzle according to the invention including a connector in an intermediate state of assembly,

Fig. 12

7 corresponding sectional view of the sixth embodiment of a nozzle according to the invention in the intermediate state of assembly,

Fig. 13

8 and 10 corresponding sectional view of the sixth embodiment of a nozzle according to the invention in the final state of assembly,

Fig. 14

2 shows a sectional illustration of a seventh embodiment of a nozzle according to the invention,

Fig. 15

2 shows a sectional illustration of the seventh embodiment of a connector according to the invention in the final state of assembly, together with the pressure container in which the connector is mounted,

Fig. 16

in an enlarged view compared to FIG. 15, the seventh embodiment of a nozzle according to the invention in the final state of assembly.

In the different figures of the drawing, the same and corresponding ones Parts always have the same reference numerals and are therefore usually also described only once.

1 and 2, which is a first embodiment of the invention show, a nozzle according to the invention for a wall part 1, in particular for a Wall part 1 of a lid or container, a piece of pipe protruding from the wall part 1 2 on. The pipe section 2 can be inside the lid, container or the like or protrude outwards.

The pipe section 2 is in the assembled state with the interposition of a seal 3 on the Wall part 1 fastened sealingly on the face side. To reach through a (unspecified) An opening in the wall part 1 is a pipe extension 4 on the pipe section 2 available in the assembled state with the wall part 1, since it is the size of the Through opening in the wall part 1 is adapted, an at least positive, axially backlash-free connection. This applies to all embodiments of the invention to.

The pipe section 2 has a flange part 5 for abutment against the wall part 1. The flange part 5 has a groove 6 on the end face, in particular an annular groove Inclusion of the seal 3. The seal 3 is formed from an O-ring.

The pipe section 2, the flange part 5 and the pipe extension 4 consist of one piece, the pipe socket 4 to form the connection with the wall part 1 from a plastic deformable material, especially a thin-walled sheet, especially preferably made of flangeable brass. Furthermore, a material such as a hot-formable plastic can be used. The range of force at which the plastic deformation occurs, is characterized by typical forces such as technical forming processes, such as sheet metal bending or riveting, occur.

The tube extension 4 can have means, in particular one, at its wall part end Have threaded section 7, for fastening a tie rod (not shown). By means of such a screwed to the internal thread of the threaded portion 7 The tie rod 4 can be pulled after it has passed through the opening in the wall part 1 was performed (Fig. 1) by applying a tensile force such that the axially backlash-free and tight connection is created (Fig. 2). The connection with the Wall part 1 is a positive and non-positive by a deformed section 8 overlaps the opening in the wall part 1, the flange part 5 of the Pipe extension 2 with the seal 3 is thereby pressed firmly onto the wall part 1. The Assembly of the nozzle according to the invention can advantageously be done in one The deformed section 8 of the container lying inside from the outside, through the wall part 1 through.

The second embodiment of the invention shown in FIG. 3 differs from that first execution by the way how the at least positive, axial backlash-free connection between wall part 1 and pipe socket 4 is formed. Also this is a positive and non-positive connection, but it does is achieved that the tube extension 4 to form the connection with the wall part 1 has special self-tapping external thread 9. Such threads are in themselves known, which can be found for example in self-tapping screws, which are in the DIN 7971, 7982 and 7976. The screw connection is also here ensured that the flange part 5 of the tubular extension 2 with the seal 3 firmly on the Wall part 1 is pressed.

4 and 5 illustrate a third embodiment of the invention. This is the first Execution of the invention similar, wherein it is characteristic that the pipe neck 4 is double-walled to form the connection with the wall part 1. It consists of an outer tube section 4a and an inner tube section 4b concentric and spaced (distance X between the inner wall of the outer tube section 4a and the outer wall of the inner tube section 4b) to one another, but on the foot side (in the assembled state, approximately in the plane of wall part 1) are interconnected. The connection to the wall part 1 is again a positive and non-positive, by (as in the first embodiment) a deformed Section 8 overlaps the opening in the wall part 1, the Flange part 5 of the pipe socket 2 with the seal 3 thereby firmly on the wall part 1 is pressed. The deformed section 8 of the pipe socket 4 is created by a exclusive deformation (compression or flare to the outside) of the Outer tube section 4a. In this embodiment there is advantageously a separation the fastening function (thread-free outer tube section 4a) and Connection function (inner tube section 4b with thread 16) of the invention Nozzle, which improves the overall function of the nozzle in terms of its reliability is optimized.

According to the invention, advantageously, neither the nozzle before a surface treatment, as a paint, on the wall part 1, is still it is necessary in the first and second embodiment of the invention that the wall part 1 must be accessible from both sides for assembly.

In the embodiments of the invention with the respective nozzle in itself known way connectors, such as (in Fig. 1 to 3 - outside and in Fig. 4, 5 - inside) multi-part fitting 15 for the respective connection one line. For this purpose, the nozzle, as shown, e.g. have corresponding internal thread 16 or locking means to form a Quick Link. The connectors can - as shown - both with the protruding pipe section 2, as well as connected to the pipe extension 4 - So inside and outside, on both sides of the wall part 1. So Fig. 1 to 3 show Pipe piece 2, the valve 15 and on the pipe socket 4 a similar, but smaller Armature 17. In the third embodiment of the invention, the pipe section 2 is designed such that, for example, a hose line 18 is simply plugged onto it can be.

6 and 8, which is a fourth embodiment of the invention show, also here has a nozzle according to the invention for a wall part 1 (especially one Container wall 1a, in particular a pressure vessel) one of the container wall 1a pipe piece 2 projecting outwards.

The pipe section 2 is also in the assembled state with the interposition of a seal 3 attached sealingly to the front of the container wall 1a. To reach through one (not closer designated opening) in the container wall 1a is a pipe extension 4 on the pipe section present, in the assembled state with the container wall 1a, since it is the size of the Through opening in the container wall 1a is adapted, an at least positive, axially backlash-free connection.

As in the previous embodiments, the pipe section 2 according to the fourth Execution of the invention for the frontal contact with the container wall 1a Flange part 5. The flange part 5 has a groove 6 on the front side, in particular one Ring groove, to accommodate the seal 3. The seal 3 is again preferred formed from an O-ring.

The pipe section 2, the flange part 5 and the pipe extension 4 consist of one piece Metal, the tube extension 4 to form the connection with the container wall 1a from a material which is plastically deformable under the action of force, in particular from a thin-walled sheet, particularly preferably made of flangeable brass, consists. The range of the force at which the plastic deformation occurs is included characterized by typical forces, such as those in technical forming processes, such as for example, when bending sheet metal or riveting.

The tube extension 4 has means, in particular one, at its container-side end Threaded section 7, for fastening a tie rod (not shown). through of such, screwed to the internal thread of the threaded section 7 The tie rod 4 can be pulled after passing through the opening in the container wall 1a was guided (Fig. 7) deformed by applying a tensile force, in particular are compressed, that the axially backlash-free and tight connection is created (Fig. 8). The connection to the container wall 1a is a positive and non-positive, by a deformed section 8 of the tubular extension 4, the opening in the The container wall 1a overlaps on the edge, with the flange part 5 of the tube extension 2 having the seal 3 is thereby pressed firmly onto the container wall 1a.

The fifth embodiment of the invention shown in FIGS. 9 and 10 differs from the previous embodiment by the way in which at least a form-fitting, axially backlash-free connection between the container wall 1a and Pipe attachment 4 is formed. This is also a positive and non-positive Connection, however - as in the second embodiment of the invention - thereby is achieved that the tube extension 4 to form the connection with the container wall 1a has a special external thread 9. As already mentioned, such are Threads known per se and can be found, for example, in sheet metal screws (in DIN 7971, 7982 and 7976). From the second embodiment of the invention The fifth version differs from the other type of inner contour Pipe section 2 and pipe socket 4.

11 to 13 illustrate a sixth embodiment of the invention. For this is characteristic that the tube extension 4 to form the connection with the container wall 1a is radially elastically deformable and locking means 10 at the end, in particular radially outward, in the assembled state the edge of the opening in the Container wall 1a engaging latching lugs, which with the inside of the Interact with container wall 1a. To achieve radially elastic deformability the tube extension 4 has an axial multiple slot 11, as this Fig. 12 clarifies in particular.

By means of an insertable into the pipe socket 4 and lockable with the pipe socket 4 Hollow expansion body 12, the tube extension 4 after being under radial Deformation of its slotted area inwards through the opening in the container wall 1a was performed (Fig. 12) by inserting and locking the Spreading body 12 are fixed so that an axially backlash-free and tight connection arises (Fig. 13). In this case, by an arranged on the bottom of the groove 6, especially shaped, compression bead 19 the O-ring pressed so that the Pipe attachment 4 is biased.

To form the latching connection between the expansion body 12 and the pipe socket 4 the two parts have corresponding interacting with each other Locking means 13, 14, such as an inner shoulder 13 in the tubular extension 4 and an outer one Edge bead 14 on the expansion body 12, as illustrated in particular in FIG. 13. A positive connection superimposed on the connection of nozzle and Container wall 1a (whereby the flange part 5 of the tube extension 2 with the seal 3 is pressed firmly onto the container wall 1a) in the sixth embodiment of the Invention in particular by a suitable design of the locking means 10, 13 of the Pipe attachment 4 for locking with the container wall 1a and with the expansion body 12 and the locking means 14 of the expansion body 12 for locking with the pipe socket 4th can be achieved by the locking means 10, 13, 14 each having inclined surfaces which cause both radially and axially acting forces in the locking connections can be of different sizes.

According to the invention, advantageously, neither the nozzle before a surface treatment, like a paint, still be mounted on the container wall 1a it is necessary that the container wall 1a accessible from both sides for assembly have to be.

Even in the third to sixth embodiment, the nozzle can be used in a manner known per se Way a connector 20, such as the valve shown, for Connection of a line. For this purpose, the nozzle, as shown, e.g. have a corresponding internal thread 16 or in turn also locking means to form a quick connection.

In the seventh embodiment of the invention shown in FIGS. 14 to 17 As with the first, third and fourth versions, the nozzle is one Variant in which the pipe socket 4 to form the connection with the wall part 1 at least partially from a material that is plastically deformable under the action of force consists.

In Fig. 15 - as mentioned - the nozzle according to the invention (with the Reference symbol S denotes) in the final state of assembly in a pressure vessel P, shown, which consists of a base part B and a cover part D. The Lid part D engages in the base part B, so that the container P has a double wall having. The nozzle S is mounted in a wall part 1 of the cover part D and through a plug part 21 is closed.

In contrast to the other variants with a flangeable tube extension 4 is in this version does not provide a central part of the tube extension 4 for flanging, but an annular end flanging section 4c (FIG. 14) of the tube attachment 4, which is flared centrally during assembly and thus in Installation state rests collar-like on the wall part 1 (see FIG. 15 and in particular 16, designated by the reference symbol 8a). In the illustrated Flanging is carried out on the outside of cover D of the pressure vessel P.

In this embodiment, too, there is advantageously a separation of the fastening function and the connection function of the nozzle S according to the invention, whereby the overall function of the nozzle S is optimized in terms of its reliability. The The separation of functions is, on the one hand, the finality of the flare section 4c reached, which on the other hand also one against another, one Base portion 4d of the tube extension 4 has an enlarged inner diameter, so that between the inner wall IW of the base section 4d, which is for connection to a Connection part 21, 22 may in turn have an internal thread 16, and the Inner wall IZ (diameter at the foot) of the flanging section 4c is at a distance A. A circular ring is formed by this axial spacing A, the area of which is large is enough to serve as a face-side contact surface for a connecting part 21, 22, as shown in FIG. 15 shown plug part 21 or that shown in Fig. 16, in the base portion 4d engaging connector 22 to serve, the assembled connector 21, 22 not comes into contact with the flange 8a.

As shown in FIG. 14, the wall thickness sw of the flanging section 4c can also change Advantage in the sense of a better implementation of the flanging based on the Base portion 4d located foot of the flanging portion 4c towards the free Taper towards the end of the flange section 4c.

This latter feature could also be used in conjunction with that shown in FIGS. 4 and 5 Execution can be realized, which can also be understood that they have a crimpable crimping section (in this case reference number 4a) and has a base portion (reference numeral 4b). The flare section could also be there 4a are also carried out so that there is no kinking during flanging, but a collar-like widening arises.

The invention is not limited to the exemplary embodiments shown, but also includes all embodiments having the same effect in the sense of the invention. So can various types of seals are used on the nozzle, for example. How 1, 3, 4, 15 and 16 in particular can both on or in the pipe section 2 (with respect to the wall part 1 inside or outside) as well as on the pipe extension 4 (in Regarding the wall part 1 inside or outside) the most diverse per se known connections can be realized, such as the one shown in FIG. 16 Connection at which this is screwed to the base section 4d via the thread 4d Connection part 22 is used to accommodate other fittings.

Furthermore, the invention is not based on the combination of features defined in claim 1 limited, but can also by any other combination of features all of the individual features disclosed are defined. This means that basically omitted or by each individual feature of claim 1 at least one feature disclosed elsewhere in the application is replaced can. In this respect, claim 1 is only a first attempt at formulation for a Understanding invention.

reference numeral

1

wall part

1a

Container wall (special case of 1)

2

pipe section

3

poetry

4

Pipe attachment on 2

4a

Outer pipe section of 4

4b

Inner tube section of 4

4c

terminal flare section of 4

4d

Base section of 4

5

Flange part of 2

6

Groove in 5

7

Thread section in 4 for tie rods

8th

deformed section of 4

8a

deformed flange section 4c

9

Male thread from 4

10

Locking device on 4 for 1

11

Multiple slots in 4

12

Spreader for 4

13

inner paragraph in 4

14

outer bead of 12

15

fitting

16

Internal thread for 15, 17, 20

17

fitting

18

hose

19

Compression bead in 6 for 3

20

connector

21

plug member

22

connector

A

Distance inside diameter 4c / 4d

B

Base part of P

D

Cover part from P

IW

Inner wall of 4d

IZ

Inner wall of 4c

P

pressure vessel

S

Support

sw

Wall thickness of 4c

Claims (20)

Connection piece for a wall part (1), in particular for a wall part (1, 1 a) of a lid or container, such as a container wall (1a), with a pipe section (2) projecting from the wall part (1, 1a),
characterized in that the pipe section (2) in the assembled state with the interposition of a seal (3) on the wall part (1, 1a) is sealingly fastened, with an opening in the wall part (1, 1a) on the pipe section (2) Pipe attachment (4) is present, which in the assembled state forms an at least form-fitting, axially play-free connection with the wall part (1, 1a). Connector according to claim 1,
characterized in that the positive connection of the pipe extension (4) with the wall part (1, 1a) is overlaid by a force fit. Socket according to claim 1 or 2,
characterized in that the pipe section (2) has a flange part (5) for abutment against the wall part (1, 1a). Socket according to one of claims 1 to 3,
characterized in that the pipe section (2), optionally the flange part (5), and the pipe extension (4) consist in one piece of metal or a deformable plastic. Connector according to one of claims 1 to 4,
characterized in that the pipe section (2), in particular the flange part (5), has a groove (6), in particular an annular groove, on the end face for receiving the seal (3). Connector according to claim 5,
characterized in that a compression bead (19) for the seal (3) is arranged in the groove (6). Connector according to one of claims 1 to 6,
characterized in that the seal (3) is formed from an O-ring. Connector according to one of claims 1 to 7,
characterized in that the tube extension (4) for forming the connection to the wall part (1, 1a) has an external thread (9) in the manner of a sheet metal screw. Connector according to one of claims 1 to 7,
characterized in that the tube extension (4) for forming the connection to the wall part (1, 1a) consists at least partially of a material which is plastically deformable under the action of force, preferably brass which can be flared. Connector according to claim 9,
characterized in that the tube extension (4) has at its wall part end means, such as a threaded section (7), for fastening a tie rod. Socket according to one of claims 1 to 7, 9 or 10
characterized in that the tube extension (4) consists of an outer tube section (4a) and an inner tube section (4b) which are arranged concentrically to one another and are connected to one another on the foot side, at least the outer tube section (4a) consisting of a material which is plastically deformable under the action of force. Socket according to one of claims 1 to 7 or 9 to 11
characterized in that the tube extension (4) has an in particular annular, terminal and centrally flarable flaring section (4a, 4c) and a base section (4b, 4d). Connector according to claim 12,
characterized in that the wall thickness (sw) of the flange section (4c) tapers from a foot located on the base section (4d) towards a free end of the flange section (4c). Connector according to claim 12 or 13,
characterized in that the flanging section (4a, 4c) and the base section (4b, 4d) are arranged at an axial distance (X, A) from one another. Connector according to one of claims 1 to 14,
characterized in that the pipe section (2) and / or the pipe extension (4) have an internal thread (16) for screwing with a fitting (20) or a connecting piece (15, 17) for a pipeline. Connector according to one of claims 1 to 15,
characterized in that the pipe section (2) is designed such that a hose line (18) can be plugged onto it. Connector according to one of claims 1 to 7,
characterized in that the tube extension (4) for forming the connection to the wall part (1, 1a) is radially elastically deformable and has end-side locking means (10) for cooperation with the inside of the wall part (1, 1a). Connector according to claim 17,
characterized in that the tube extension (4) has an axial multiple slit (11) to form the radially elastic deformability. Connector according to claim 17 or 18,
characterized by a hollow expansion body (12) which can be inserted into the tube extension (4) and which can be locked with the tube extension (4). Connector according to one of claims 1 to 19,
characterized in that the wall part (1, 1a) is a wall (1a) of a pressure vessel (P) from which the pipe section (2) protrudes inwards or outwards.

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